Home / 3,642.56-5,020.74-2,580.68

Finding the Fourth Proportional to 3,642.56, 5,020.74 and 2,580.68

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Solution

The fourth proportional to 3,642.56, 5,020.74 and 2,580.68 is: 3,557.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.56 : 5,020.74 = 2,580.68 : x
  2. Step 2: Convert to fraction form
    3,642.56/5,020.74 = 2,580.68/x
  3. Step 3: Cross multiply
    3,642.56x = 5,020.74 × 2,580.68
  4. Step 4: Simplify right side
    3,642.56x = 12,956,923.30
  5. Step 5: Solve for x
    x = 12,956,923.30/3,642.56
  6. Step 6: Final answer
    x = 3,557.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.